Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 1:19:45 AM (PDT) on Monday, September 13, 2021.
The magnitude 0.4 event occurred 6 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 0.4 - duration magnitude (Md)
Time Monday, September 13, 2021 at 1:19:45 AM (PDT)
Monday, September 13, 2021 at 8:19:45 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) NW (325 degrees)
Cobb, CA - 6 km (4 miles) W (271 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (168 degrees)
Middletown, CA - 18 km (11 miles) WNW (296 degrees)
Cloverdale, CA - 19 km (12 miles) E (84 degrees)
Coordinates 38 deg. 49.4 min. N (38.823N), 122 deg. 47.9 min. W (122.798W)
Depth 2.27 km (1.4 miles)
Quality Good
Location Quality Parameters Nst=8, Nph=8, Dmin=1.7 km, Rmss=0.02 sec, Erho=0.39 km, Erzz=1.35 km, Gp=103 degrees
Event ID# nc73624296
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For more information, see https://earthquake.usgs.gov

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